Printer&#39;s quoin



Nov. 3, 1931. c. M. DANZIG 1,830,194

PRINTERS QUOIN Filed May 13,1950

@ MMIII,

simil-iai* il@ i p r l I l f gifofiifiiiiakli rib1=0 af be (the praat: Qmsiambovo dos@ g P of-qu 111s Will involve,rsay, 200 applications of the quoin key, assuming that each .pair could be suciently tightonedvby four sepa.- i e Unif. St't rate rounds of the form. ftH'I'rpl 'f' Witht Y ioned type, howevenit is necessary to tighten each one separately by .means of the quoin key and to go around the formseveral times tightfv ening them gradually, in order not to displace 5 the body of typejor to distortvthe form. For f example, assuming that each pair of quoins .must be tightened. fourtimes to complete the operation, there would be 28 steps'involved, since seven pairs of quoinsrareshown 10 in Fig. l. Bymy invention, the entirefoperation ,wouldv be completed-.by-notniorethan eight steps and possibly less.' As will beseen in the drawings, eachof ymy quoins 5v is wedge shaped and` is `provided 15 withthe longitudinal rib Gfand the longitudi-- g .nalggrooyel in :the thicker end. In the .slop- V.finglface1 of.eachquoimthere istalso formed.V

.on either .Iside .of lthe Vlongitudinal rib, the" 4. eeth 8..adapted tog-engage Vwith the usualy 420 V.quoin key.

VMy -quoin's are used in pairs in the same manner to acertain degree as thefoldfash- ,ionedtype, thatfis to say, as shown in Figs. l `and-2, I oppose one. quoin with another'to l 251form a pair, the thick end-of one ybeing op#A posedbythe thin end of the other, andthe longitudinal rib .6 of each-:engaging with the longitudinal groove'vof the, other. It. also follows, therefore, .that .the .teeth 8 ofthe .one

,',30y .will oppose the .teeth ofthe other, asshow-n vin 1Fig'..2. Ifk .theusualquoin key is vinsertedso as .to.engagethe teeth of both quoinsof a pair in the .usual manner, Vone of the quoins will :slide longitudinally with respect .to the other .352 the overallthiclrness yof the pair will be `increased'because of vtheir tapered shape., .To .this exte Y -raresubstantiallyalike.l l f rkIIowzever,I .achieve .a great savingin .time .v 40 lbylocking .my quoins .together into .trains so thatthe movement -of one will .causeaa'propor- A.tionate.moyementand expansion of yall the Vvdrawings,"I provide at 'the .thin end 4.of my .1245. vqnoin a pin r9l projecting vfrom the tapered fac'e, .and in the opposite face of each .quoin' "Iform a recess 1 1 of sufficient dept'hto receive f. thev .narrowend of another q uoin.,A Thisiend is also provided with a'hole l2 of such sizeand -oysopositioned thatit will Vpermitof the'in.-

A.sert'ion ofthep'in v9 Vof vanother q uoin, .thus y ,lock-inggtogether two quoins whiclrcomprise Ytheequivalentfhalves .of twopai-rs. The other f quo'ins of the pairs are similarly. constructed l fandflocked together..V As aresult., it will .be

' .seen .thatpif Ylongitud -ifrial.'lmovemient is.. i1n .partedto any .oneof the-quoins of atra-in by .means ofthe quoinlrey., `it will-cause la* similar i movement ,of all theother quoins in the train. i60 The train maybe .made at any desired z'length.. In 1V a .train iof four pairs is .fshownon the -le-ftaside and a `main ofV three N lpairs on thelower side.. This ison'ly forpur- ,poses of illustration, since yobviously two nt; the oldlafnd improved new quoins ployed on the left side anda train of two pai anda separate single pair might have be used` on the lower side. `The only limitatio: asto the Vnumber ofy quoins which may l Vlocked together and operated asa unit are tl practical ones of convenience and fricti( which .obviously wouldincrease as .the traf Vis lengtlienfed and "wht vconceivably rea( .such a value that it'would-bev difficult to pro] erly tighten the train` by application of tl wrench to onlyfa-single pair.Y

In this way I have madeit possible to r duce the labor and time element o f locking u printingforms very materially. without altei `"ing the-"established methods'of procedure s tained where teach pair issetup sepamatelyan for :this :reason fewer trips .aroimdthe fori .are required than/ formerly. 'For .the .sam reason l avoid the Nery common occurrenceo yspringing the fornifomj-of shape midwaybe if. tween its ends which Iv have already referrer .to .as the result of inadvertently? tightening l.one paifrofquoinsm'ore :than another. Y

My invention fis vparticularly useful in colo: printing where it is-.essential that :the bod of type abe accurately dpositioned andmai-n .ta-ined -that position; ylhetendency of thl .fold type of quoin to loosen yup tend-s .to throv` the vbody. of type-out of positionand :it i:

vexceedingly difficult, .if i not yimpossible, ft( .ih ring it `back :into registerby retightening-thc .individual-pairs ofjquoins. vlZVithfthe quoinf connectedI into trains :in .accordance :with .frny

" invention the danger Vof loosening is Ipracticall- -lyfe-liin-inated and, if it should occur, the eny N l tire trainwouldbefaiifectedtoithe same extent .others inthetrain. AslwillV beseenfrom .the

so that while the .actual ,pressure exerted by wouldnevertheless remain uniform. Inicase retighter1-ingbecomes.-y necessary fall lof the :qnoins'will besimulta'neouslyzand equally :expanded -and imifor-rn-ity of lpressure, maintained. -Thus thetendency to distort ord-isp place the type bodyfis eliminated.

I claim; v v

.5A -.quoin including av'wedges'hapedbody, a

Apin in the itliifnend of said bodyfa hole in the thick end ofsaidlbody, said'pi-nand sai'dhole hein-g. adapted to `engage with similar: holes pins respectively in other similar :quoins ywhereby they maybe-locked together to form aftra-in. j 1..,

In :testimony whereof I have hereuntoset vmy fhand on .this f8th' day of Nay A. D., 13980. `1 CHARLES M. .DNZIGw 65v .trains-ol two pairseach might have been em- 

